Polaroid's PL-108AF Flash is a fully automatic digital flash with support for Nikon i-TTL. It has a guide number of 66' at ISO 100 and coverage for a 35mm lens on full frame cameras. It has vertical bounce angles of 0°, 45°, 60°, 75°, and 90° along with an AF assist light for dark scenarios. An auto sleep mode means less charging time, more shooting time and red eye reduction ensures natural looking eyes. Additionally, it has both 1st and 2nd curtain sync settings as well as a recycle time of 0.3-10 seconds with 2 AA batteries.